Expressing screw or auger for brick-machines.



A l H. NEITZBL-` A EXPRESBING SCREW 0B. AUGER FQR BRICK MACHINES.

` APBLIGATION 'ILBD SEPT. 6, 1907.

901 l Patenged Oct. 20, 1908.

0F CONC()RDlI KANSAS.

EXPRESSING SCREW OR AUGER FR BRICILMACHNES.

Specification of Letters Patent.

Patented Get 20, 1908.

\ Application filed September 6, 1907. Serial No. 391,748.

To all vili/ rom it 'may (onvermllo il known thai L ,llannAN Narr/:an acitizen of the llnited Hiaten, residing ai (lonmrdia, in ihe, eountyo'l` Cloud and Stato of Kansas, have. invented eerain new and usefulvInuuovenientsI in lxprekfaing Screws or Angers lor Buick-)llaelunes;and l do hereby doelaro tho following' lo ho a fnlh Clear, and exactdescription ofi the inveniioin Such will ei'iahleo'lhors skilled in theart to which it appertainf to inale and uw the I have 'further arrangedthe device, so that' it can bo removed when it hoooinos too lunch Wornfor practical use. This consists in lum` ing the auger head detachablefrom the auger stein land Va rei-ess or inox-lise .formed Within thoanger hoad to reoive the end of said auger Stein which can he sorowodtherein, or have, aoonioal seat with a key or feathering device forretaining tho head inA placa.

The invention further consists in makingv the spiral portion of thoscrew of shoot. stool or' any desired material and holting it to 'theauger head. .By this moans the Soran' or spiral can ho readily replacedwhen it loeconles worn or is other-wine rendered useless.

The invention further consists of' the, prac,- tioal and novelConstruction of the auger head to receive the Sheet stool screw. Saidanger head is formed with a. spiral step or rahloei piiwifl'iiig apernzfnont and durable scat as well as i slmuldni which reinforces thespiral. Said rahhet may extend any distaurino upon tho rear portion orhack oi the Spiral Without ohstruoting movement of the, Clay Wl'lon thedovioe it. in operation, While tin; anger head is so constructed thatitat contour forms a spiral groove Wl'iich is roi'inded or concave inorosei section and has Smooth nniintorriipied fifonneotion with' theSheet ine-tal spiral. The general form of said auger head and Spiral ificonical. By this moana the entrance of the anger into the clay is moreeasilyaccomplished.

This devieey has aiflvaniages over those in prezeui una as-itinoxpenshfe. compared lo those angers which are formed from the ,vloeitoil (he anger Stein. lVith my iinl:n'oved device. aug'or hoads can heykopt on i hand ready for iinniodiate'iwo in Cano one heroines brokenthrough constant uae or due delay for repairs.

lu the drawingl Figure, i is a side elevation oi luy improved anger.Fig. 2 a longitudinal sootion ot' the device oxhibitiing ihe-ineaiis forneruringan augerlstein, and Fig. 2 in a. rear view oi the device.

The auger head A has Spiral grooves D formed therein leaving` ridges Dbetween said `gfroovea. Strips l oig shoot steel bent lo fornioorrospoinliup; Spirals are socured in rahhet groovoa` l" in 4theWorking;` faces of said ridges hy means of arrows or bolts (l. SaidStrips are inclined rearward as ai l except at the outer end of the,head where they are iueliuad slightly forwardl at lill. Said stripsrnfojert beyond said ridge/n and ronaliluie ihe working' screw of the,auger. The rahheted joint hen'oen l aid strips: and the auger headprovides a :'ziuooth Surface where said parta moet. The ange-r head iapret'erahly tailored 1o iis'eud as Shown. Centrally located lin the roarend oi tho head A is a borey or opening Gr for securing' the end oil anauger sleur ll` which can ho of any contour on ita end for retaining thehead A. By the uae ol' the, steel strips l' ivliieh engage the olay, l:un ahle lo produce a hrielv' oi" iiriu siruoluro with leso power as theelay runs over steel more smoothly and easily than over- Tant iron.lViih a east iron auger a eortaiu pianto elay must he used and it willnot inalie hrioh out of a, Sandy or loainy clay. Un the other hand7 inyanger will work in any kind ot ola'y whether sandy, loaniy or plasio.

l elaiiuz,

1. \n expressing aorow o augurfor brick maeliinea, having a Spiralrounded groove therein, and a spiral plate Secured to the workin-g 'face'ol the ridge at theI edge ot aald igroove and inclined rearwardly in0onfolv'rnity to said face.

i.. An expressing screw oi. auger, for hrielc maohineS, h :n'ing aapiral rounded groove therein, and a spiral plate secured to theworlizingrl fao@ of tho ridge at the edge, of Said groove and inclinedrearwardly in conN formity to said face, except at thotorward iroiuother causes, ihml proventiunf any 11nend of said auger where saidplate'is inclined .slightly forward. f

3. An expressing screw or auger for brick machines having its headformed with a 5 spiral rounded groove, and Zi spiral. wear plate securedin a rabbet groove in the working face of the ridge at the edge of saidgroove, said plates projectingbeyond said ridges and beinginelined realvardly in conloffoiinity to said working face.

4. An expressing screw or auger for brick machines having its headformed with-a spiral rounded groove, and a spiral weer" 'plate securedin a rabbet 'groove in the work- 15 ing face of the ridge vat the edgeof said groove, said plates projecting beyond said ridges and beinginclined rearwardly in conformity to said working face, excepftat theiorward end of said head whore said plate 2o is inclined slightlyforward. 5. An expressing screw or auger for brick machines comprising asolid cast head having a socket in'its rear end extending only part waytherethrough, and a shaft secured 25 in said socket, said head beingtapered and having a plurality of spiral rounded grooves I ,i f f eoreisformed in its surface, and spiral wear plates secured in rabbet groovesin the working faces of the ridges at the edges of said grooves, saidplates projecting beyond said ridges and'bring inclined rearwardly inconfornrity 1 |`o said .vorking faces.

6. An expressing screw or auger for brick machines comprising a` solidcast head having a socket in its rear end extending only part waytherethrough, and a shaft secured in said socket, said head beingtapered and having a plurality of `spiral rounded grooves formed in itssurface, and' spiral wear plates secured in rabbet grooves in y theworkingy faces of the ridges at the edges 'o f said grooves, said platesprojecting beyond said ridges and being inclif` ed rearwardly in conformity to said working faces, except at the forward end of said headwhere said plates are inclined slightlv forward.

ln.. testimony whereof, l. affix my signature, in presence of vtwowitnesses.

i HERMAN NEITZEL. Witnesses:

i i. RVNniTzEL, T. C. Hrwwns.

